Filter and purifier for feed-water.



PATENTED AUG. l5, 1905.

M. P. OSBOURN. FILTER AND PURIPIER FOB. FEED WATER.

APILOATIOH )FILED AUG. l 1903.

Nm '797313. PATENTED AUG. l5, 1905. M.. P. OSBUURN..

FILTER AND PUEIPIEE EUR FEED WATER. APPLIOATION FILED mm1, 1903.

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mvnnw n 511mm no` wofuumoamrfnms, wAsHmswn. o cA lii'hiil'llED MULLARD P. USBOURN, OF MERCHANTVILLE, NEv JERSEY, ASSIGNOR TO WARREN WEBSTER AND COMPANY, A CORPURATION OF NEW JERSEY.

lFlILTiEW AND lUHlFlEFi F0131 FEED-WATER..

Specification of Letters Patent.

ratentea Aug. 1 '5, ieee.

Application filed August l, 1903. Serial No. 167,811.

To @ZZ whom if; may concern,.-

Be it known that i, MILLARD P. OsBoURN, of Merchantville, Camden county, State oi' New Jersey, have invented an Improvement :in Filters and Puriliers for Feed-l/Vater, of which the following is a specilication.

lVly invention relates particularly to devices :lfor purifying and Filtering feed-water. @ne of the great difficulties in such devices is the necessity of interrupting the operation of the lilter while the [iltering material is being cleaned or renovated, which frequently causes the suspension of the operation of an entire plant. My improvements are intended to entirely obviate this ditiicuity and to enable the liltering material to be removed and replaced from one portion of the lilter while the other portion remains in action. This object I accomplish by forming the iilter with independent [iltering-chambers, each having an independent inlet and outlet, which may be closed independently of the inlet and outlet of the other chamber, and by providing the -iltering-chamber with iiltering appliances of a character which permits them to be easily removed and replaced through doors provided :for that purpose. Wl/Vith my improvements in order to entirely renovate the lilter it is only necessary to close one filtering-compartment, drain the contents, open the door, remove the iiltering appliances and replace them by fresh ones, then open this filtering-chamber to the water and close the other and proceed in like manner with it. These operations may all be performed in a few minutes, and as one chamber is always in action there is no suspension oi' the operation of the 'liltein My invention also embraces other improvements, which are 'lfully set 'forth hereinafter. lln the drawings, lEigure .l is a longitudinal vertical sectional view ol a feed-water heater, .iilter, and purilier embodying my improvements. Eig. 2 is a transverse vertical sectional view on the line A A oi Fig. 1. Eig. 3 a similar view on the line `B B o'll Eig. 1. ,lligz 4L is a horizontal sectional view on the line U (l oli' Eig. 3, and Eig. 5 is a perspective 'view oi? one oi' the removable lilter-sections.

lhc upper portion fr is the usual feed-water heater, which when used may be oi" the form shown or oi' any other suitable construction. ris shown, the heater is ol the Lopen7 type, lthe steam being supplied through the steaminlet a and the water through the inlet ci.

rlhe water passes over the perforated pans ai; and falls in a spray through the steam, which it condenses. A chemical purifying agent is supplied to the water-supply pipe g from a pipe and the supply ol both the water and purifying agent is controlled automatically by valves a5 operated by a Vfloat c, which may be either in the heater proper or, as here shown, in the purifier.

The hot water from the heater a passes through the passage Z into the purilier a, which contains a number of chambers e, e, and e3, communicating with one another in series, through which the water passes over barriers d to a filter y' and after traversing the lilter passes to the outlet vf. The barriers d are arranged transversely above pans d, which catch the sediment and collect it in troughs or passages which discharge into pipes t.

A heater, filter, and purilier of this general character is shown and described in Letters Patent No. 729,088. A part of my improvementsrelate to a puriiier o'lr this character, while other improvements relate to the lilter and are not limited tothe particular character oi' the purilier shown. ln Patent No. 729,088 the pans over which the barriers are arranged and by which the sediment is received and collected are each provided with a central open trough, from which discharge-pipes lead laterally through the side of the purifier.

in the present invention instead oi" having these open troughs each pan is formed with a longitudinal central passage-way or conduit f below its upper surface, having perforations f `l'or the passage oi' the sediment. These passage-ways or cond nits, fare connected at one end to branch supply-pipes z/ Yfor water or steam and at the other end with branches /f/ ot' a discharge-main /z,. 1V ith this construction the sediment deposited in the passage-ways or conduits may be forced out through the discharge-pipes /t into the main /t by water or steam introduced through the pipes y. in the construction shown the branches g/ lead :from the water-supply pipe g. Not only is this arrangement Isimpler in construction, but it enables the sediment to he more easily and quickly discharged through the straightway passages thus allmded, and as the passage-ways j are closed except for the perforations j" sul'iicient pressure may be utilized to eliectively Vlorce out the sedi-w cates through suitable openings o.

vpasses upward through the filteringcarment without unduly disturbing the dead-wal ter held in the pockets formed between adjacent barriers d. The inlet-pipes ,f/ and the discharge branches /1/ are controlled by suitable valves g2 7a2, respectively. l

The filtering-chamber j is interposed between the outlet and the last of the series of purifying-chambers, with which it communi- In the preferred form of my invention the filteringchamber is of duplex forme/. e., it is divided vertically by a partition y" into similar liltering-chambers ,7'2 jx, each communicating with the purifier by an independent inlet 0 and with the discharge by an independent outlet 0, so that either or both filtering-chambers may be used. These inlets and outlets are respectively controlled by doors or gates p so arrang'ed that either or both iilterin g-ch ambers may be Open. In the construction shown these doors p p are of the sliding type, and each one is provided with a threaded boss engaging a screw q, extending through the side walls. By turning the screws g the doors p y1' may be moved in either direction. W' hen the doors p p are in the central position, as shown in Figs. 2 and et, both filtering-chambers are open, and by moving the doors in one direction or the other one of' the filteringchambers may be closed.

Any suitable filtering appliances may be used in the filtering-chambers. I have, however, devised special filtering appliances which I prefer to use in practice. rIhese consist of one or more removable cartridges placed horizontally in each filtering-chamber vand adapted to be removed when necessary for cleaning or substitution. These cartridges preferably consist of fiat boxes r, of' gauze- Wire, Fig. 5, having' a lid o. rIhe filtering material (crushed quartz, charcoal, mineral wool, or whatever may be used) inclosed in a textile covering when necessary is packed in the box r, and the box is placed horizontally in the filtering-chamber.

In the construction shown the inner walls of the filtering-chambers are provided with horizontal guides s s, between which the cartridges are inserted. The side walls of the filtering-chambers are provided with doors H to enable the filtering-cartridges to be inserted or removed. In the drawings I have shown each filtering-chamber provided with two parallel filtering-cartridges, but one or any number may be used.

The operation of the filter is as follows: Supposing both filtering-chambers to be open, as shown in Figs. 2 and 4, which would be the normal operation, the water enters the lower portion of each filteringl chamber,

tridges, and then out through the outlets 0 0 to the discharge-outlet c'. If for any reason it is desired to clean or renew the filtering material, the doors p p are moved to close one of the chambers je f3, (the other remaining open.) The water contained in the closed filter is drained off through the outlet a, the door is opened, and the cartridge fr is removed. Meanwhile the passage of the water through the other filtering-chamber is not interrupted. After the cartridge is replaced in the first chamber and the door is closed the doors p p are moved back to open the inlet and outlet 0 0. The other filteringchamber may then be closed and its cartridge removed and replaced in like manner. The iilterial material may thus be removed and replaced at any time without interrupting the operation of' the filter.

The details of' construction shown may be varied without departing from my invention.

fhat I claim as new, and desire to secure by Letters Patent, is as follows:

l. The combination in the purifying-chamber, of' the outer casing divided longitudinally into horizontal compartments arranged one above another and communicating in series, the bases of said compartments consisting of horizontal pans provided with longitudinal central trough -like passage ways opening at their ends and communicating with the faces of' the pans through perforations therein, barriers extending transversely over the faces of said pans, a supply-pipe communicating with one end of' each troughlike passage-way, and a discharge-pipe communicating with the other end.

2. In a filter and purifier, the combination of an outer casing, a purifying-chamber therein, a filter also located within the outer casing and having two separate filtering-chambers, provided with independent inlets communieating' with the common purifying-chamber and with independent outlets, and means operated from the exterior of the casing to close the inlet and outlet of either filtering-chamber.

3. In a lter and purifier, the combination of an outer casing, a purifying-chamber therein, a filter also located within the outer casing and havingl two separate filtering-chambers, provided with independent inlets communieating with the common purifying-chamber and with independent outlets, movable doors adapted to close the inlet and outlet of either filtering-chamber, and means to operate said doors from the exterior of the outer casing.

4. In a filter and purifier, the combination of' an outer casing, a purifying-chamber therein, a filter also within the outer casing and having two separate filtering-chambers provided with independent inlets communicating with the common purifying-chamber and with independent outlets, horizontal supports within the filtering-chambers, removable filtering appliances carried by said supports, said outer casing being provided with openings for the insertion and removal of' said filtering appliances, doors for said openings and means operated from the exterior oi the easing to control the inlets and outlets of the filteringehainbers.

In atilter, the combination of the body divided internally into two independent tilteringeharnbers each having an independent inlet and outlet, a sliding' door centrally arranged between the pair of inlets and outlets respectively, and screws engaging said doors and adapted to move them transversely in either direction to elose the inlet and outlet of either eharnber.

6. A filter and purifier consisting of an outer shell or easing divided internally into a purifying Chamber and independent filteringeharn bers having independent inlets trono said purifying-chamber and independent outlets and eaeh provided With an opening in the easing ttor the 'insertion and removal oi' the liltering appliance, doors to control said openings, means to control the inlets and outlets ot' said iiMering-chambers and a removable liltering appliance adapted to be inserted and removed frein eaeh liltering-ehanlber.

7. The combination in the puritying-chainber of the outer easing, a base-pan supported longitudinally in said easing and having an integral eentral longitudinal trough-like passage-way open at its ends and communicating with the faee oi' the base-pan through perforations therein, transverse barriers extending across the face of the base-pan, a supplyu pipe communicating with one end et said trough-like passage-Way, and a dischargepipe communicating with the other end thereof, said trough and supply and discharge pipes forming a straightway passage for blowing out sediment.

in testimony oi which invention l hereunto set my hand.

t/HL'LARD l). OS'BUURN. Witnesses:

MAX P. MiLLnR, FRANK R. Bou/Nn. 

